Symmetric-slot monopole antenna

Abstract

A symmetric-slot monopole antenna is provided, including a metallic board. Formed on the metallic board are a ground connection part to provide a ground circuit for the monopole antenna and a radiation part formed integrally on the ground connection part to receive and radiate signals transmitted through a signal cable.

1. A symmetric-slot monopole antenna comprising:
 a metallic board having a ground connection part and at least one radiation part formed thereon, wherein the ground connection part is formed integrally with the radiation part, the radiation part formed perpendicular to the plane of the ground connection part, the radiation part having a signal-feeding hole, the radiation part receiving and radiating a signal; and 
 a signal cable having a signal terminal, the signal terminal inserted into the signal-feeding hole of the radiation part to connect the signal-feeding hole to receive the signal. 
 
   
   
     2. The symmetric-slot monopole antenna according to  claim 1 , wherein each of the at least one radiation part corresponds to two impedance matching slots, and each of the two impedance matching slots formed on the metallic board to match the impedance of the symmetric-slot monopole antenna. 
   
   
     3. The symmetric-slot monopole antenna according to  claim 1 , wherein the radiation part is of a length of ¼ λ (wavelength). 
   
   
     4. The symmetric-slot monopole antenna according to  claim 1 , wherein the signal cable further comprises a ground connection terminal connected to the ground connection part. 
   
   
     5. The symmetric-slot monopole antenna according to  claim 1 , wherein the radiation part is in the shape of a strip. 
   
   
     6. The symmetric-slot monopole antenna according to  claim 1 , wherein the radiation part is in the shape of a “T.” 
   
   
     7. The symmetric-slot monopole antenna according to  claim 1 , wherein the symmetric-slot monopole antenna is an MIMO (multi-input multi-output) antenna. 
   
   
     8. The symmetric-slot monopole antenna according to  claim 7 , wherein the multi-input multi-output antenna is arranged in a row. 
   
   
     9. The symmetric-slot monopole antenna according to  claim 7 , wherein the multi-input multi-output antenna is arranged in a column. 
   
   
     10. The symmetric-slot monopole antenna according to  claim 1 , wherein the signal-feeding hole is formed on lower end of the radiation part near the ground connection part.